Naomie Harris and Adrian Brody Both Fooled By Fake Psy At 2013 Cannes Film Festival

Possibly the most hilarious story to come out of this year's Cannes Film Festival was the revelation that an imposter impersonating 'Gangnam Style' star Psy managed to bluff both celebrities and festival organisers to party with the stars at some of the most glamorous parties of the year.

However 'Pirates Of The Caribbean' actress Naomie Harris was left totally embarrassed when she even posted a photograph of herself with the con- artist on Twitter obviously totally convinced that she was rubbing shoulders with the real YouTube sensation.

Naomie Harris and Adrian Brody Both Fooled By Fake Psy At 2013 Cannes Film Festival

Naomie Harris and Adian Brody are both fooled by the fake Psy (WENN)

But the real Psy was actually thousands of miles away in Singapore performing at Social Star Awards taking to Twitter to expose the phoney after being alerted by the imposter by manager Scooter Braun: “Seems like there's another ME at cannes...say Hi to him @scooterbraun lol” (sic)

The 36-year-old actress hung her head in shame as she admitted to having the wool pulled over her eyes by the fake rapper tweeting: “It looks as if we've been fooled, that wasn't the real @psy_oppa! Could anyone else tell from the picture? Or am I just going crazy!? Haha!” Whoops!

Naomie Harris and Adrian Brody Both Fooled By Fake Psy At 2013 Cannes Film Festival

Naomie Harris posing with the fake 'Gangnam Styale' star (Twitter)

'King Kong' star Adrian Brody was also fooled at the festival posing with what he thought was the real K pop star along with Portland Trail Blazers player Nicolas Batum.

The Cannes Film Festival kicked off this week with the biggest names from Hollywood all flocking to the French resort to attend the glitziest parties of the year and maybe catch a few film's too!

The real Psy will be appearing at next month's Capital FM's Summertime Ball at Wembley Stadium on June 9 alongside Taylor Swift, Robbie Williams and Jessie J.

Meanwhile he has been hinting that a new album is in the pipeline to be released this summer marking his first worldwide LP since the phenomenal 'Gangnam Style' launched the star around the globe.